Sweating (Hyperhidrosis): Diagnostic Tests

Obligatory medical device diagnostics.

  • Minor iodinestrength test (synonym: Minor test; Minor test; iodine-strength test; is a qualitative test procedure for the detection of hyperhidrosis. Test procedure: The sweating skin area is carefully dried and then brushed with an iodinepotassium iodide solution. This is then dusted with a starch powder after drying. The mixture turns blue-black on contact with sweat. The distribution pattern of the staining often allows conclusions to be drawn about the causes). – For focal sweating disorders

Optional medical device diagnostics – depending on the results of the history, physical examination and the obligatory laboratory parameters – for differential diagnostic clarification.

  • Quantitative sudometry or gravimetry (determination of the amount of sweat).
  • Abdominal ultrasonography (ultrasound examination of the abdominal organs) – as a standard diagnostic test for unclear night sweats [hepatomegaly (liver enlargement)?, splenomegaly (spleen enlargement)?, abdominal tumors? (esp. lymphoma)]
  • X-ray of the thorax (X-ray thorax/chest), in two planes – in case of unclear night sweats [tuberculosis (TB)? (primary, post-primary complex, miliary pattern); chronic infectious status? (bronchopneumonia, interstitial or atypical pneumonias, fungal infections)]
  • Computed tomography (CT) of the thorax (thoracic CT), if necessary with contrast agent administration – if pathological (pathological) changes in the thoracic organs (chest organs) are suspected [bronchial carcinoma (lung carcinoma)?; mediastinal space demands (space demands localized in the mediastinum (mediastinal space))?, hilar lymph nodes ( lymph nodes located on the pulmonary pedicle)?]
  • Computed tomography (CT) of the abdomen (abdominal CT) – if the lung findings are unremarkable and the symptom “night sweats” is combined with other B symptoms (unexplained, persistent or recurrent fever (> 38 °C); involuntary weight loss (> 10% percent of body weight within 6 months)) [lymphoma?]
  • Electrocardiogram (ECG; recording of the electrical activity of the heart muscle) – as a standard diagnostic test for night sweats.